Discuss April 2009

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291 participants
340 discussions

Processes to disable
by David Lemcoe 14 Apr '09

14 Apr '09

I was told by some more-experienced Cent users that there are a bunch of processes I should kill and get out of the startup folder. He said that Cent (even with a small install) has a bunch of processes that really aren't needed and just burn up processes. Which ones should I get rid of for just a webserver? MySQL server? Thanks.

5 8

yum clean all
by Michael A. Peters 14 Apr '09

14 Apr '09

There seems to be a lot of this needed lately. I suspect the issue is 5.2 -> 5.3 transition. Putting something like this in /etc/cron.daily/ when near a major update *might* make the transition times between point releases easier - #!/bin/bash RANGE=120 number=$RANDOM let "number %= $RANGE" delay=`/usr/bin/expr $number \* 60` sleep $delay /usr/bin/yum clean all > /dev/null 2>&1 /usr/bin/yum makecache > /dev/null 2>&1 -=- Point of the random delay is to not have lots of people hit all the servers at once.

1 0

Cannot play rmvb video files after burning to DVD
by hce 14 Apr '09

14 Apr '09

Hi, I am running CentOS 5.2. I tried to burn rmvb video files to DVD+R disk using Nautilus 2.16.2, the files were burned to the disk, but could not play it back with errors "Unkown file format". It was no problem to play the same file located on the disk. Any advice please? Thank you. Kind Regards, JH

3 2

Possible bug?
by Sam Drinkard 13 Apr '09

13 Apr '09

I had some problems with apache, and there were so many, (caused by removing ispconfig) I decided to just remove and re-install. This is what happened when I tried to do so, both from remote and via console. I tried the DVD as well as yum, and got essentially the same thing. My webserver is down, and I'd sure like to get this fixed if anyone can help out. Begin errors: Component: pirut Summary: TBe8ae967a sqlitesack.py:94:_read_db_obj:TypeError: unsubscriptable object Traceback (most recent call last): File "/usr/sbin/pirut", line 373, in _apply output = self.applyChanges(self.mainwin) File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 813, in applyChanges self.checkDeps(mainwin) File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 550, in checkDeps (result, msgs) = self.buildTransaction() File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 647, in buildTransaction (rescode, restring) = self.resolveDeps() File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 696, in resolveDeps CheckDeps, checkinstalls, checkremoves, missing = self._resolveRequires(errors) File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 779, in _resolveRequires thisneeds = self._checkInstall(txmbr) File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 851, in _checkInstall provs = self.tsInfo.getProvides(*req) File "/usr/lib/python2.4/site-packages/yum/transactioninfo.py", line 432, in getProvides result.update(self.getNewProvides(name, flag, version)) File "/usr/lib/python2.4/site-packages/yum/transactioninfo.py", line 414, in getNewProvides for pkg, hits in self.pkgSack.getProvides(name, flag, version).iteritems(): File "/usr/lib/python2.4/site-packages/yum/packageSack.py", line 300, in getProvides return self._computeAggregateDictResult("getProvides", name, flags, version) File "/usr/lib/python2.4/site-packages/yum/packageSack.py", line 470, in _computeAggregateDictResult sackResult = apply(method, args) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 861, in getProvides return self._search("provides", name, flags, version) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 43, in newFunc return func(*args, **kwargs) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 837, in _search for pkg in self.searchFiles(name, strict=True): File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 43, in newFunc return func(*args, **kwargs) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 586, in searchFiles self._sql_pkgKey2po(rep, cur, pkgs) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 470, in _sql_pkgKey2po pkg = self._packageByKey(repo, ob['pkgKey']) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 413, in _packageByKey po = self.pc(repo, cur.fetchone()) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 68, in __init__ self._read_db_obj(db_obj) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 94, in _read_db_obj setattr(self, item, _share_data(db_obj[item])) TypeError: unsubscriptable object Local variables in innermost frame: item: name db_obj: None Many thanks.. Sam

2 2

x86_64 server OOM problems after update to 5.3
by Rick Barnes 13 Apr '09

13 Apr '09

Hello, Over the weekend, I upgraded one of my servers that runs mysql and pdns to 5.3. Previous to the update I have not had an issue form this server. But since, I have had mysql die multiple times from oom-killer. $ uname -a Linux rack2a 2.6.18-128.1.6.el5 #1 SMP Wed Apr 1 09:10:25 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux Unfortunately, the server has been rebooted by others before I have been able to look at it while the problem is occurring. But I have found this in the logs: http://pastebin.centos.org/25553 Running sar -A: http://pastebin.centos.org/25556 Since the server was rebooted, the amount of swap is used is 0. How do I determine what process is/was chewing up the memory on this server? What should I be looking for to narrow this down? Thanks, Rick

3 7

when to reboot after updates
by Jerry Geis 13 Apr '09

13 Apr '09

What is the rule of thumb for reboots after updates... Certainly if I update from 5.2 to 5.3 I reboot. But if you update something like krb5 or pam does that require a reboot? Does the "fix" get automatically loaded and used or do you just do a reboot always? Thanks, Jerry

15 20

flash drive crashes machine
by Michael Klinosky 13 Apr '09

13 Apr '09

I just installed 5.3 on a tower box. When I plug in a usb flash drive, the machine crashes. I don't know how to diagnose the problem; I used gnome-system-log, and got this (watching it as I plugged it in): Apr 12 16:43:25 ga7zx kernel: usb 1-2: new full speed USB device using uhci_hcd and address 2 Apr 12 16:43:25 ga7zx kernel: usb 1-2: configuration #1 chosen from 1 choice Apr 12 16:43:27 ga7zx kernel: Initializing USB Mass Storage driver... As this point, the whole system becomes an ice cube - I can't even 3-finger salute to reboot. This happened a few times - same result. The board is a Gigabyte with an AMD Athlon 1.3 GHz cpu. Be aware that this drive works fine on 3 other boxes (with 5.3, Fedora 7, and Fedora 8). What could be wrong? What else should I check? How do I fix it?

4 4

Lost Acroread and flash plugin
by Robert Moskowitz 13 Apr '09

13 Apr '09

Since the upgrade to AdobeReader_enu-9.1.0-1.i486.rpm and flash-plugin-10.0.22.87-release.i386.rpm, I have lost these in firefox. And Adobe Reader is not even on my Gnome Applications panel, I have to run it from a terminal window. Perhaps this has been covered, but how do I get these back?

3 3

Firefox 3.0.8 released, but not showing up in mirrors?
by Gilbert Sebenste 13 Apr '09

13 Apr '09

Hello all, Several days ago, I noticed Firefox 3.0.8 was released for i386, but I haven't seen it on any of the mirrors. I know it can take a few days for mirrors to sync, but I think it's been 5 days now. Anyone see this package out there yet? ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************

3 3

filesystem rpm fails when /home is NFS mounted
by Paul Heinlein 12 Apr '09

12 Apr '09

I don't know if it's a bug or a feature, but the filesystem-2.4.0-2.el5.centos rpm won't upgrade cleanly if /home is an NFS filesystem. I sorta-kinda remember this when going from 5.1 to 5.2, but that memory is hazy. -- Paul Heinlein <> heinlein(a)madboa.com <> http://www.madboa.com/

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Discuss April 2009